Sistema Cantareira

Sistema Cantareira
Paiva Castro Dam, in Mairiporã
Sistema Cantareira
Sistema Cantareira
Coordinates23°19′48″S 46°40′44″W / 23.33000°S 46.67889°W / -23.33000; -46.67889
Catchment area2,307 km2 (891 sq mi)
Managing agencySabesp
First flooded29 June 1973 (Paiva Castro and Atibainha dams)
Water volume990 million cubic metres (800,000 acre⋅ft)
SettlementsBragança Paulista, Piracaia, Vargem, Joanópolis, Nazaré Paulista, Franco da Rocha, Mairiporã, Caieiras and São Paulo

Sistema Cantareira (Cantareira system) is a water supply system in the state of São Paulo, Brazil. It is composed of five interconnected reservoirs that provide water to 9 million people in the São Paulo metropolitan area. The system is managed by Sabesp, São Paulo's state water management company.